基于渐变螺距的白菜种子定量排种器设计与试验OA

To improve the fluency and quantitative accuracy of precision sowing of cabbage seeds,a quantitative seeding device based on a gradient pitch spiral rod was designed utilizing theoretical analysis and performance testing.First,the structure of the quantitative seeder was designed,followed by the analysis and calculation of relevant parameters;orthogonal simulation experiments and operational parameter optimization were conducted using Adams software.The results indicated that the optimal parameter combination for the cabbage seed precision metering device was the use of a gradual-pitch screw auger combined with a seed groove volume of 8 mm³ in the rotating disc.With this optimal parameter combination,the pass rate for cabbage sowing reached 89.6%.Above results provided new seeding device to address the issues of blockage and low quantitative accuracy in cabbage seed sowing and served as a reference for related research.